that could certainly be a solution, however these stores / branches are companies in Odoo and each company must be able to present a balance sheet and loss and profit. This also makes it easy to benchmark and to file a consolidated VAT return. And in the stores, sales are certainly made via PoS, orders are also accepted and entered (B2B), so there is a combination of types of orders. Every branch is a company and I think Odoo then has its own warehouse for each branch, or not?

I guess you can have 1 warehouse and 5 POS (Points Of Sale). Would that work?